Seat for puppet or foot valves of pumps.



No. 843,597. )PATENTED FBB.12,190'7.

L.'M. GERWE.

SEAT FOR PUPPBT 03 FOOT VALVES 0F PUMPS- APPLICATION FILED JULY 7, 1905.

i A and UNITED STATES PATENT @FFTGE.

SEAT FOR PUPPET OR FOOT VALVES OF PUMPS- ?ATQ. 843,597.

Specification of Letters Patent.

Patented Feb. 12, 1907 Application filed July'l, 1905. Serial No.263,683.

To all whmn it may concern.-

Be it known that I, LOUIS M. GERWE, a citizen of the United States, anda resident of Davenport, in the county of Scott and State of Iowa, haveinvented certain new and useful Improvements in Seats for Puppet or FootValves of Pumps, of which the following is a full, clear, and exactdescription.

My invention relates to the seats of puppet or foot valves, particularlyof domestic pumps; and its object is to provide avalve that is readilyremovable, and on account of the novel construction of its valve-seatthe same may also be taken out of the well-pipe without unnecessarytrouble or labor. This I accomplish by simple means, which can beattached to the lower end of the plunger-rod and lowered into place,substantially as here inatter fully described, and as particularlypointed out in the claim.

In the drawings, Figure 1 is a vertical central section of the lowerportion of the lower cylinder, the upper end of the well-pipe locatedbelow the same and the coupling connecting these parts having myinvention applied thereto. Fig. 2 is a side view of my improvedvalve-seat. Fig. 3 is a transverse section taken on dotted line 3 8,Fig. 2. Fig. 4 is a similar sect-ion taken on dotted line 4 4, Fig. 2.

Referring to the drawings, A represents the lower portion of the lowercylinder of an ordinary domestic pump; B, the concentric wellpipe ofless diameter depending into the bore of the well below the lowercylinder, and C represents the coupling connecting the cylinder pipe B.The bore of the central portion of the coupling C is slightly greaterthan its lower portion and has a circumferential groove a made thereinnear its upper end.

The bore of the upper portion of the coupling (1, which screws over thelower end of the cylinder A, is greater in diameter than its centralportion and provides a shoulder 6, upon which is seated a suitablepacking-ring c. The lower end edges of the cylinder press down upon thispacking -ring when it is screwed into the coupling to form a watertightjoint, substantially as shown.

My improved valve-seat comprises a cylindrical body D, the lower end ofwhich is provide d with a circumferential flange (Z, of a diameterslightly less than the bore of the central portion of the coupling C.The upper edges of this flange (Z are beveled, and surrounding the bodyD, just above the same, is

an annulus e, which is supported by said flange and is of the samediameter thereas. The lower outer edge of this annulus e is beveled andis opposed to the bevel edges of the flange and together therewith makesa circumferential groove, in which an annular spring E is placed, thenormal diameter of which is slightly greater than that of the flange.The ends of the annular spring are separated a suitable distance apart,so as to permit of the compression of said ring and its consequentreduction in diameter.

The upper screw-threaded portion of the outer circumference of the bodyD of the valveseat is engaged by the interiorly-screwthreaded lower bossof a cage F, which presses between its lower edges and the ring 6 apacking-ring G, of leather or other suitable material. The pressure ofwater above the valve-seat makes this packing-ring spread and preventsleakage from the cylinder down into the well-pipe between the sides ofthe valve-seat and the bore of the coupling. The upper portion of thecage F comprises inverted- L-shaped armsf, which arise from the nar rowcircumferential flange on the upper end of the lower boss of the cageand have their inturned overhanging edges terminate in a guide-boss ofless diameter than the lower boss. The bore of this upper bosscorresponds in shape to and serves as a guide for thelongitudinally-grooved spindle h, arising centrally from the valve H,which latter consists of a circular plate of such diameter as to closethe upper end of the reduced upper portion of the bore of the valve-seatbody. For purposes which will be obvious the valve I-I may, if desired,have a screw-threaded stud 1' depending centrally down from it, and theupper end of the spindle It may have a screwthreaded stud I projectingcentrally upward from it.

In operation when it is desired to remove the valve and valve-seat theupper screwthreaded stud I on valve H is engaged by a suitable devicewhereby the same is withdrawn. By thus removing the valve and valve-seatI release the pressure on packing G and enable said valve and valve-seatto be withdrawn while the water-pressure is released in the cylinder A.

What I claim as new is In a wall a lower cylinder, a depending upper endof the body of said valve-seat, a l In testimony'whereof I have hereuntoset valve retained and vibrating Within said cage, my l1 and this 24thday of June, A. D. 1905.

a suitable packing interposed between said LOUIS M GERWE seat-b0dy andsaid lower cylinder, and means independent of said packing forreniovably Witnesses: locking said valve-seat in said coupling and W. E.MOORE, allowing a limited vertical play therein. H. J. GERWE.

